Skyla - How long until the bleeding stops??

On August 13th, 2015, I have skyla inserted, was on my second day of my period (Dr. Recommended) I need to know if is normal that keep bleeding light and non stop.. The first day I had skyla, was bleeding a little more than normal then it was regular but after my period ended I continue having bleeding, not a lot is light, but the blood sometimes looks vivid red and other like brownish red, the odor is different, like when you bleed after having a baby, want to know if this is normal???